[MPlayer-dev-eng] Re: frequency range check and keeping old volume for radio support

Bernd Ernesti mplayer-dev-eng at lists.veego.de
Tue Nov 7 18:03:31 CET 2006


On Tue, Nov 07, 2006 at 01:43:39PM +0600, Vladimir Voroshilov wrote:
> 
> Hi, RC
> 
> 2006/11/7, RC <rcooley at spamcop.net>:
> >> First is ability to check frequency range to disallow setting ivalid
> >> values for frequency parameter.
> >
> >> +#define FREQ_MIN 87.50
> >> +#define FREQ_MAX 108.00
> >
> >Is this a limitation of TV cards with radio support?  
> >If not, I can certainly see many uses of going above and below the
> >standard FM radio frequencies.
> Can you give me some examples of it?
> I don't know does TV card have such limitation or not.
> 
> Quotes from "FCC ONLINE TABLE OF FREQUENCY ALLOCATIONS" "47 C.F.R. § 
> 2.106", Page 19
> (http://www.fcc.gov/oet/spectrum/table/fcctable.pdf):

[..]
> Region 3 Table: 87-100 FIXED,MOBILE,BROADCASTING (Broadcast Radio (FM))
> Region 3 Table: 100-108 BROADCASTING (Broadcast Radio (FM))

You missed the footnotes here:

75.4-87
FIXED MOBILE
5.182 5.183 5.188

5.182 Additional allocation: in Western Samoa, the band 75.4-87 MHz is also
      allocated to the broadcasting service on a primary basis.
5.183 Additional allocation: in China, Korea (Rep. of), Japan, the
      Philippines and the Dem. People¡'s Rep. of Korea, the band 76-87 MHz
      is also allocated to the broadcasting service on a primary basis.
5.184 Additional allocation: in Bulgaria and Romania, the band 76-87.5 MHz
      is also allocated to the broadcasting service on a primary basis and
      used in accordance with the decisions contained in the Final Acts of
      the Special Regional Conference (Geneva, 1960).

I know that at least in Japan they start at 76 MHz for FM radio (I used it
there).

Bernd




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